{"id":8454,"date":"2011-06-30T03:00:03","date_gmt":"2011-06-30T08:00:03","guid":{"rendered":"http:\/\/blogs.scienceforums.net\/swansont\/?p=8454"},"modified":"2011-06-30T03:00:03","modified_gmt":"2011-06-30T08:00:03","slug":"seven-ferrite-rings-for-the-laser-lords-in-their-dark-labs-of-cinderblock","status":"publish","type":"post","link":"http:\/\/blogs.scienceforums.net\/swansont\/archives\/8454","title":{"rendered":"Seven Ferrite Rings For the Laser-Lords in Their Dark Labs of Cinderblock"},"content":{"rendered":"<p><a href=\"http:\/\/blogs.scienceforums.net\/swansont\/files\/2011\/04\/rings.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/blogs.scienceforums.net\/swansont\/files\/2011\/04\/rings.jpg\" alt=\"\" width=\"504\" height=\"332\" class=\"alignnone size-full wp-image-8455\" srcset=\"http:\/\/blogs.scienceforums.net\/swansont\/wp-content\/uploads\/sites\/4\/2011\/04\/rings.jpg 504w, http:\/\/blogs.scienceforums.net\/swansont\/wp-content\/uploads\/sites\/4\/2011\/04\/rings-300x198.jpg 300w\" sizes=\"auto, (max-width: 504px) 100vw, 504px\" \/><\/a><\/p>\n<p>OK, more than seven.  Ferrite rings (aka cores) are used as inductive loads in circuits, among other things.  Any alternating current in a wire creates a magnetic field.  By looping the wire through the ring a few times, you will create a changing magnetic field inside, which will produce eddy currents.  These currents create fields which oppose the induced changes (this is Lenz&#8217;s law).  From the circuit&#8217;s point of view (I hope it will excuse me anthropomorphizing it; I know circuits dislike that) this is an inductive load, so the alternating current sees a higher impedance than the DC, and this knocks down any high-frequency noise you might have and reduces what you write onto the components being powered.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>OK, more than seven. Ferrite rings (aka cores) are used as inductive loads in circuits, among other things. Any alternating current in a wire creates a magnetic field. By looping the wire through the ring a few times, you will &hellip; <a href=\"http:\/\/blogs.scienceforums.net\/swansont\/archives\/8454\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38,39,54],"tags":[],"class_list":["post-8454","post","type-post","status-publish","format-standard","hentry","category-photos","category-physics","category-the-lab"],"_links":{"self":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts\/8454","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/comments?post=8454"}],"version-history":[{"count":0,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/posts\/8454\/revisions"}],"wp:attachment":[{"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/media?parent=8454"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/categories?post=8454"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blogs.scienceforums.net\/swansont\/wp-json\/wp\/v2\/tags?post=8454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}